[PATCH 3/5] fuse: Propagate dentry down to inode_change_ok()

Jan Kara
2016-05-26T16:20:12Z

To avoid clearing of capabilities or security related extended
attributes too early, inode_change_ok() will need to take dentry instead
of inode. Propagate it down to fuse_do_setattr().

Signed-off-by: Jan Kara <jack@suse.cz>
---
fs/fuse/dir.c | 7 ++++---
fs/fuse/file.c | 2 +-
fs/fuse/fuse_i.h | 2 +-
3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index b9419058108f..4a613d1e9e75 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1586,9 +1586,10 @@ int fuse_flush_times(struct inode *inode, struct fuse_file *ff)
* vmtruncate() doesn't allow for this case, so do the rlimit checking
* and the actual truncation by hand.
*/
-int fuse_do_setattr(struct inode *inode, struct iattr *attr,
+int fuse_do_setattr(struct dentry *dentry, struct iattr *attr,
struct file *file)
{
+ struct inode *inode = d_inode(dentry);
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
FUSE_ARGS(args);
@@ -1702,9 +1703,9 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr)
return -EACCES;

if (attr->ia_valid & ATTR_FILE)
- return fuse_do_setattr(inode, attr, attr->ia_file);
+ return fuse_do_setattr(entry, attr, attr->ia_file);
else
- return fuse_do_setattr(inode, attr, NULL);
+ return fuse_do_setattr(entry, attr, NULL);
}

static int fuse_getattr(struct vfsmount *mnt, struct dentry *entry,
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 9154f8679024..46d65f1a79d2 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -2828,7 +2828,7 @@ static void fuse_do_truncate(struct file *file)
attr.ia_file = file;
attr.ia_valid |= ATTR_FILE;

- fuse_do_setattr(inode, &attr, file);
+ fuse_do_setattr(file_dentry(file), &attr, file);
}

static inline loff_t fuse_round_up(loff_t off)
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index eddbe02c4028..59a26446762b 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -951,7 +951,7 @@ bool fuse_write_update_size(struct inode *inode, loff_t pos);
int fuse_flush_times(struct inode *inode, struct fuse_file *ff);
int fuse_write_inode(struct inode *inode, struct writeback_control *wbc);

-int fuse_do_setattr(struct inode *inode, struct iattr *attr,
+int fuse_do_setattr(struct dentry *dentry, struct iattr *attr,
struct file *file);

void fuse_set_initialized(struct fuse_conn *fc);